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4284Re: Creeping wood sorrel (Oxalis corniculata)

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  • Steve
    Aug 17, 2009
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      Hi David,

      I'm Steve, in Bermuda.

      The Oxalis here (creeping - either O. corniculata or O. stricta or
      both - and clumping - maybe O. griffithii) form dense mats. Both
      reproduce prolifically, and I know of no reliable (ecologically
      friendly) method of removing them once they are established besides
      manual labor (pulling it all out by hand).
      The creeping one makes little okra-shaped pods which are spring loaded
      and can fling the seed up to 8 or 10 feet away. It's even a bit
      painful if you trigger it with your hand while gardening and it flings
      the seeds in your face.
      The clumping type reproduces from bulblets underground. If you pull
      this wood sorrel from the ground, you are likely helping it to spread,
      because the bulblets are dragged apart and then germinate seperately
      in their own new clumps.
      Now, my way of approaching this was to lay a light barrier over the
      whole patch and build a no-dig bed on top of it. Sure, it comes back
      eventually, but in the meanwhile the aerial parts provide you with
      some nice organic material under your beds. In a forest garden
      situation, you may wish to sheet mulch in order to keep the wood
      sorrell down in order to plant other things. It isn't going to hurt
      your efforts as far as tree planting goes.

      I'm off to bed.



      "The spirit of this country is totally adverse to a large military force."

      - Thomas Jefferson
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